http://www.hids4u.co.uk/product_details.asp?id=44 the above link is for a H4 bi-xenon kit. my car is a 1999 a3 1.8t sport (pre-facelift obviously), it has 3 bulbs: 1 sidelight, 1 dipped, 1 main/fog bulb, so im using a H4/H7 combo, so i looked at this kit instead: http://www.hids4u.co.uk/product_details.asp?id=332 which is the standard xenon fit with a choice of bulbs. however the blurb for it says: ..so the first part they dont recommend this std H4 xenon kit because its for dipped xenon with halogen main beams (which i have?), but then right after they recommend the bi-xenon kit unless the car has seperate main beams (which i also have, but the bi-xenon is 2x H4 fittings, not 1xH7, 1xH4 that i require). based on the contradicting/confusing info they've provided, what sort of kit do i need/want? (argh!) also whats the difference between a "projector style" headlamp and a "standard reflective headlight" look like, how can i tell the difference as apparently std reflective headlights can be converted, whatever that means?